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Proceedings Paper

Performance of the smoothing of small target spots in frequency-tripled high-power laser
Author(s): Xiujuan Jiang; Jinghui Li
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Paper Abstract

The uniform irradiation performance of the small target spots for indirect-drive inertial confinement fusion is studied. A lens array and the technique of smoothing by spectral dispersion are included in the frequency-tripled high-power laser driver. The intensity distributions of the target spots are simulated and their spatial power spectra are analyzed. The results show that spots of clear envelopes can be obtained with a lens array and smoothing by spectral dispersion has obvious effects in eliminating high-contrast intensity modulation inside the spots, even in the cases they are very small. With the two methods of beam smoothing, performance of indirect-drive experiments is expected to be evidently improved.

Paper Details

Date Published: 6 February 2012
PDF: 7 pages
Proc. SPIE 8236, Laser Resonators, Microresonators, and Beam Control XIV, 823625 (6 February 2012); doi: 10.1117/12.906931
Show Author Affiliations
Xiujuan Jiang, Guangdong Univ. of Technology (China)
Jinghui Li, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 8236:
Laser Resonators, Microresonators, and Beam Control XIV
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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